Mesa (master): mesa/main/ff_frag: Use compressed fog mode.

[Marek Olšák]

Module: Mesa
Branch: master
Commit: f7c9bf0c6bfa7eddafa5afc6c8e33e7f0a993db7
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f7c9bf0c6bfa7eddafa5afc6c8e33e7f0a993db7

Author: Gustaw Smolarczyk <wielkiegie at gmail.com>
Date:   Thu Mar 30 20:09:31 2017 +0200

mesa/main/ff_frag: Use compressed fog mode.

Signed-off-by: Gustaw Smolarczyk <wielkiegie at gmail.com>
Signed-off-by: Marek Olšák <marek.olsak at amd.com>

---

 src/mesa/main/ff_fragment_shader.cpp | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/src/mesa/main/ff_fragment_shader.cpp b/src/mesa/main/ff_fragment_shader.cpp
index e1fe9b58c0..bdbefc7880 100644
--- a/src/mesa/main/ff_fragment_shader.cpp
+++ b/src/mesa/main/ff_fragment_shader.cpp
@@ -117,21 +117,6 @@ struct state_key {
    } unit[MAX_TEXTURE_COORD_UNITS];
 };
 
-#define FOG_NONE    0
-#define FOG_LINEAR  1
-#define FOG_EXP     2
-#define FOG_EXP2    3
-
-static GLuint translate_fog_mode( GLenum mode )
-{
-   switch (mode) {
-   case GL_LINEAR: return FOG_LINEAR;
-   case GL_EXP: return FOG_EXP;
-   case GL_EXP2: return FOG_EXP2;
-   default: return FOG_NONE;
-   }
-}
-
 #define OPR_SRC_COLOR           0
 #define OPR_ONE_MINUS_SRC_COLOR 1
 #define OPR_SRC_ALPHA           2
@@ -446,8 +431,7 @@ static GLuint make_state_key( struct gl_context *ctx,  struct state_key *key )
    }
 
    /* _NEW_FOG */
-   if (ctx->Fog.Enabled)
-      key->fog_mode = translate_fog_mode(ctx->Fog.Mode);
+   key->fog_mode = ctx->Fog._PackedEnabledMode;
 
    /* _NEW_BUFFERS */
    key->num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers;